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arXiv 0905.2696hep-ph
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中性子暗物质与惰性希格斯玻色子和单玻色子

Neutralino Dark Matter with Inert Higgsinos and Singlinos

Jonathan P. Hall, Stephen F. King

摘要:

我们讨论了中性伴子暗物质产生的超对称模型与额外的惰性希格斯玻色子和singlinos,其中惰性意味着他们的标量伙伴没有得到真空期望值。作为一个例子,我们考虑了E $_6$ SSM的扩展中性伴子部分,它预测了三个希格斯双态对家族,加上三个单态,加上一个$Z'$,以及它们的费米超伙伴。我们表明,该模型预测的两个家庭的惰性二重态希格斯和单线态提供了一个几乎解耦的中性伴子部门与自然光LSP可以占冷暗物质遗迹丰度独立于其余的模型,提供两个通常的希格斯二重态的比例满足tan β < 2。

英文摘要:

We discuss neutralino dark matter arising from supersymmetric models with extra inert Higgsinos and singlinos, where inert means that their scalar partners do not get vacuum expectation values. As an example, we consider the extended neutralino sector of the E$_6$SSM, which predicts three families of Higgs doublet pairs, plus three singlets, plus a $Z'$, together with their fermionic superpartners. We show that the two families of inert doublet Higgsinos and singlinos predicted by this model provide an almost decoupled neutralino sector with a naturally light LSP which can account for the cold dark matter relic abundance independently of the rest of the model, providing that the ratio of the two usual Higgs doublets satisfies tan beta < 2.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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